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25 // 25 //
>> 26 // $Id: G4VMultipleScattering.cc 66594 2012-12-23 10:17:42Z vnivanch $
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class file 30 // GEANT4 Class file
30 // 31 //
31 // 32 //
32 // File name: G4VMultipleScattering 33 // File name: G4VMultipleScattering
33 // 34 //
34 // Author: Vladimir Ivanchenko on base 35 // Author: Vladimir Ivanchenko on base of Laszlo Urban code
35 // 36 //
36 // Creation date: 25.03.2003 37 // Creation date: 25.03.2003
37 // 38 //
38 // Modifications: 39 // Modifications:
39 // 40 //
>> 41 // 13.04.03 Change printout (V.Ivanchenko)
>> 42 // 04-06-03 Fix compilation warnings (V.Ivanchenko)
40 // 16-07-03 Use G4VMscModel interface (V.Ivanc 43 // 16-07-03 Use G4VMscModel interface (V.Ivanchenko)
41 // 03-11-03 Fix initialisation problem in Retr 44 // 03-11-03 Fix initialisation problem in RetrievePhysicsTable (V.Ivanchenko)
42 // 04-11-03 Update PrintInfoDefinition (V.Ivan 45 // 04-11-03 Update PrintInfoDefinition (V.Ivanchenko)
43 // 01-03-04 SampleCosineTheta signature change 46 // 01-03-04 SampleCosineTheta signature changed
44 // 22-04-04 SampleCosineTheta signature change 47 // 22-04-04 SampleCosineTheta signature changed back to original
45 // 27-08-04 Add InitialiseForRun method (V.Iva 48 // 27-08-04 Add InitialiseForRun method (V.Ivanchneko)
46 // 08-11-04 Migration to new interface of Stor 49 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
47 // 11-03-05 Shift verbose level by 1 (V.Ivantc 50 // 11-03-05 Shift verbose level by 1 (V.Ivantchenko)
48 // 15-04-05 optimize internal interface (V.Iva 51 // 15-04-05 optimize internal interface (V.Ivanchenko)
49 // 15-04-05 remove boundary flag (V.Ivanchenko 52 // 15-04-05 remove boundary flag (V.Ivanchenko)
50 // 27-10-05 introduce virtual function MscStep 53 // 27-10-05 introduce virtual function MscStepLimitation() (V.Ivanchenko)
51 // 12-04-07 Add verbosity at destruction (V.Iv 54 // 12-04-07 Add verbosity at destruction (V.Ivanchenko)
52 // 27-10-07 Virtual functions moved to source 55 // 27-10-07 Virtual functions moved to source (V.Ivanchenko)
53 // 11-03-08 Set skin value does not effect ste 56 // 11-03-08 Set skin value does not effect step limit type (V.Ivanchenko)
54 // 24-06-09 Removed hidden bin in G4PhysicsVec 57 // 24-06-09 Removed hidden bin in G4PhysicsVector (V.Ivanchenko)
55 // 04-06-13 Adoptation to MT mode (V.Ivanchenk <<
56 // 58 //
>> 59 // Class Description:
>> 60 //
>> 61 // It is the generic process of multiple scattering it includes common
>> 62 // part of calculations for all charged particles
57 63
58 // ------------------------------------------- 64 // -------------------------------------------------------------------
59 // 65 //
60 //....oooOO0OOooo........oooOO0OOooo........oo 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
61 //....oooOO0OOooo........oooOO0OOooo........oo 67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
62 68
63 #include "G4VMultipleScattering.hh" 69 #include "G4VMultipleScattering.hh"
64 #include "G4PhysicalConstants.hh" 70 #include "G4PhysicalConstants.hh"
65 #include "G4SystemOfUnits.hh" 71 #include "G4SystemOfUnits.hh"
66 #include "G4LossTableManager.hh" 72 #include "G4LossTableManager.hh"
67 #include "G4MaterialCutsCouple.hh" 73 #include "G4MaterialCutsCouple.hh"
68 #include "G4Step.hh" 74 #include "G4Step.hh"
69 #include "G4ParticleDefinition.hh" 75 #include "G4ParticleDefinition.hh"
70 #include "G4VEmFluctuationModel.hh" 76 #include "G4VEmFluctuationModel.hh"
71 #include "G4UnitsTable.hh" 77 #include "G4UnitsTable.hh"
72 #include "G4ProductionCutsTable.hh" 78 #include "G4ProductionCutsTable.hh"
73 #include "G4Electron.hh" 79 #include "G4Electron.hh"
74 #include "G4GenericIon.hh" 80 #include "G4GenericIon.hh"
75 #include "G4TransportationManager.hh" 81 #include "G4TransportationManager.hh"
76 #include "G4SafetyHelper.hh" 82 #include "G4SafetyHelper.hh"
77 #include "G4ParticleTable.hh" <<
78 #include "G4ProcessVector.hh" <<
79 #include "G4ProcessManager.hh" <<
80 #include "G4LossTableBuilder.hh" <<
81 #include "G4EmTableUtil.hh" <<
82 #include <iostream> <<
83 83
84 //....oooOO0OOooo........oooOO0OOooo........oo 84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
85 85
86 G4VMultipleScattering::G4VMultipleScattering(c << 86 G4VMultipleScattering::G4VMultipleScattering(const G4String& name, G4ProcessType):
87 : G4VContinuousDiscreteProcess("msc", fElect << 87 G4VContinuousDiscreteProcess("msc", fElectromagnetic),
88 fNewPosition(0.,0.,0.), << 88 numberOfModels(0),
89 fNewDirection(0.,0.,1.) << 89 firstParticle(0),
>> 90 currParticle(0),
>> 91 stepLimit(fUseSafety),
>> 92 skin(1.0),
>> 93 facrange(0.04),
>> 94 facgeom(2.5),
>> 95 latDisplasment(true),
>> 96 isIon(false)
90 { 97 {
91 theParameters = G4EmParameters::Instance(); <<
92 SetVerboseLevel(1); 98 SetVerboseLevel(1);
93 SetProcessSubType(fMultipleScattering); 99 SetProcessSubType(fMultipleScattering);
>> 100 if("ionmsc" == name) { firstParticle = G4GenericIon::GenericIon(); }
>> 101
>> 102 geomMin = 1.e-6*CLHEP::mm;
>> 103 lowestKinEnergy = 10*eV;
94 104
95 lowestKinEnergy = 10*CLHEP::eV; << 105 // default limit on polar angle
>> 106 polarAngleLimit = 0.0;
96 107
97 geomMin = 0.05*CLHEP::nm; << 108 physStepLimit = gPathLength = tPathLength = 0.0;
98 minDisplacement2 = geomMin*geomMin; << 109 fIonisation = 0;
99 110
100 pParticleChange = &fParticleChange; 111 pParticleChange = &fParticleChange;
>> 112 safetyHelper = 0;
>> 113 fPositionChanged = false;
>> 114 isActive = false;
101 115
102 modelManager = new G4EmModelManager(); 116 modelManager = new G4EmModelManager();
103 emManager = G4LossTableManager::Instance(); 117 emManager = G4LossTableManager::Instance();
104 mscModels.reserve(2); <<
105 emManager->Register(this); 118 emManager->Register(this);
>> 119
>> 120 warn = 0;
106 } 121 }
107 122
108 //....oooOO0OOooo........oooOO0OOooo........oo 123 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
109 124
110 G4VMultipleScattering::~G4VMultipleScattering( 125 G4VMultipleScattering::~G4VMultipleScattering()
111 { 126 {
>> 127 if(1 < verboseLevel) {
>> 128 G4cout << "G4VMultipleScattering destruct " << GetProcessName()
>> 129 << G4endl;
>> 130 }
112 delete modelManager; 131 delete modelManager;
113 emManager->DeRegister(this); 132 emManager->DeRegister(this);
114 } 133 }
115 134
116 //....oooOO0OOooo........oooOO0OOooo........oo 135 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 136
118 void G4VMultipleScattering::AddEmModel(G4int o << 137 void G4VMultipleScattering::AddEmModel(G4int order, G4VEmModel* p,
119 const G << 138 const G4Region* region)
120 { 139 {
121 if(nullptr == ptr) { return; } << 140 G4VEmFluctuationModel* fm = 0;
122 G4VEmFluctuationModel* fm = nullptr; << 141 modelManager->AddEmModel(order, p, fm, region);
123 modelManager->AddEmModel(order, ptr, fm, reg << 142 if(p) { p->SetParticleChange(pParticleChange); }
124 ptr->SetParticleChange(pParticleChange); <<
125 } 143 }
126 144
127 //....oooOO0OOooo........oooOO0OOooo........oo 145 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
128 146
129 void G4VMultipleScattering::SetEmModel(G4VMscM << 147 void G4VMultipleScattering::SetModel(G4VMscModel* p, G4int index)
130 { 148 {
131 if(nullptr == ptr) { return; } << 149 ++warn;
132 if(!mscModels.empty()) { << 150 if(warn < 10) {
133 for(auto & msc : mscModels) { if(msc == pt << 151 G4cout << "### G4VMultipleScattering::SetModel is obsolete method "
134 } << 152 << "and will be removed for the next release." << G4endl;
135 mscModels.push_back(ptr); << 153 G4cout << " Please, use SetEmModel" << G4endl;
>> 154 }
>> 155 G4int n = mscModels.size();
>> 156 if(index >= n) { for(G4int i=n; i<=index; ++i) {mscModels.push_back(0);} }
>> 157 mscModels[index] = p;
>> 158 }
>> 159
>> 160 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 161
>> 162 G4VMscModel* G4VMultipleScattering::Model(G4int index)
>> 163 {
>> 164 ++warn;
>> 165 if(warn < 10) {
>> 166 G4cout << "### G4VMultipleScattering::Model is obsolete method "
>> 167 << "and will be removed for the next release." << G4endl;
>> 168 G4cout << " Please, use EmModel" << G4endl;
>> 169 }
>> 170 G4VMscModel* p = 0;
>> 171 if(index >= 0 && index < G4int(mscModels.size())) { p = mscModels[index]; }
>> 172 return p;
>> 173 }
>> 174
>> 175 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 176
>> 177 void G4VMultipleScattering::SetEmModel(G4VMscModel* p, G4int index)
>> 178 {
>> 179 G4int n = mscModels.size();
>> 180 if(index >= n) { for(G4int i=n; i<=index; ++i) { mscModels.push_back(0); } }
>> 181 mscModels[index] = p;
>> 182 }
>> 183
>> 184 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 185
>> 186 G4VMscModel* G4VMultipleScattering::EmModel(G4int index)
>> 187 {
>> 188 G4VMscModel* p = 0;
>> 189 if(index >= 0 && index < G4int(mscModels.size())) { p = mscModels[index]; }
>> 190 return p;
>> 191 }
>> 192
>> 193 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 194
>> 195 G4VEmModel*
>> 196 G4VMultipleScattering::GetModelByIndex(G4int idx, G4bool ver) const
>> 197 {
>> 198 return modelManager->GetModel(idx, ver);
136 } 199 }
137 200
138 //....oooOO0OOooo........oooOO0OOooo........oo 201 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
139 202
140 void 203 void
141 G4VMultipleScattering::PreparePhysicsTable(con 204 G4VMultipleScattering::PreparePhysicsTable(const G4ParticleDefinition& part)
142 { 205 {
143 G4bool master = emManager->IsMaster(); << 206 if(!firstParticle) { firstParticle = ∂ }
144 if (nullptr == firstParticle) { firstParticl << 207 if(part.GetParticleType() == "nucleus") {
>> 208 SetStepLimitType(fMinimal);
>> 209 SetLateralDisplasmentFlag(false);
>> 210 SetRangeFactor(0.2);
>> 211 if(&part == G4GenericIon::GenericIon()) { firstParticle = ∂ }
>> 212 isIon = true;
>> 213 }
145 214
146 emManager->PreparePhysicsTable(&part, this); 215 emManager->PreparePhysicsTable(&part, this);
147 currParticle = nullptr; << 216 currParticle = 0;
>> 217
>> 218 if(1 < verboseLevel) {
>> 219 G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for "
>> 220 << GetProcessName()
>> 221 << " and particle " << part.GetParticleName()
>> 222 << " local particle " << firstParticle->GetParticleName()
>> 223 << " isIon= " << isIon
>> 224 << G4endl;
>> 225 }
148 226
149 if(firstParticle == &part) { 227 if(firstParticle == &part) {
150 baseMat = emManager->GetTableBuilder()->Ge <<
151 G4EmTableUtil::PrepareMscProcess(this, par <<
152 stepLimit, facrange, <<
153 latDisplacement, master, <<
154 isIon, baseMat); <<
155 228
>> 229 InitialiseProcess(firstParticle);
>> 230
>> 231 // initialisation of models
156 numberOfModels = modelManager->NumberOfMod 232 numberOfModels = modelManager->NumberOfModels();
157 currentModel = GetModelByIndex(0); << 233 for(G4int i=0; i<numberOfModels; ++i) {
>> 234 G4VMscModel* msc = static_cast<G4VMscModel*>(modelManager->GetModel(i));
>> 235 msc->SetIonisation(0, firstParticle);
>> 236 if(0 == i) { currentModel = msc; }
>> 237 if(isIon) {
>> 238 msc->SetStepLimitType(fMinimal);
>> 239 msc->SetLateralDisplasmentFlag(false);
>> 240 msc->SetRangeFactor(0.2);
>> 241 } else {
>> 242 msc->SetStepLimitType(StepLimitType());
>> 243 msc->SetLateralDisplasmentFlag(LateralDisplasmentFlag());
>> 244 msc->SetSkin(Skin());
>> 245 msc->SetRangeFactor(RangeFactor());
>> 246 msc->SetGeomFactor(GeomFactor());
>> 247 }
>> 248 msc->SetPolarAngleLimit(polarAngleLimit);
>> 249 G4double emax =
>> 250 std::min(msc->HighEnergyLimit(),emManager->MaxKinEnergy());
>> 251 msc->SetHighEnergyLimit(emax);
>> 252 }
158 253
159 if (nullptr == safetyHelper) { << 254 modelManager->Initialise(firstParticle, G4Electron::Electron(),
>> 255 10.0, verboseLevel);
>> 256
>> 257 if(!safetyHelper) {
160 safetyHelper = G4TransportationManager:: 258 safetyHelper = G4TransportationManager::GetTransportationManager()
161 ->GetSafetyHelper(); 259 ->GetSafetyHelper();
162 safetyHelper->InitialiseHelper(); 260 safetyHelper->InitialiseHelper();
163 } 261 }
164 } 262 }
165 } 263 }
166 264
167 //....oooOO0OOooo........oooOO0OOooo........oo 265 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
168 266
169 void G4VMultipleScattering::BuildPhysicsTable( 267 void G4VMultipleScattering::BuildPhysicsTable(const G4ParticleDefinition& part)
170 { 268 {
171 G4bool master = emManager->IsMaster(); << 269 G4String num = part.GetParticleName();
172 << 270 if(1 < verboseLevel) {
173 if(firstParticle == &part) { << 271 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
174 emManager->BuildPhysicsTable(&part); << 272 << GetProcessName()
175 } << 273 << " and particle " << num
176 const G4VMultipleScattering* ptr = this; << 274 << G4endl;
177 if(!master) { <<
178 ptr = static_cast<const G4VMultipleScatter <<
179 } 275 }
180 276
181 G4EmTableUtil::BuildMscProcess(this, ptr, pa << 277 emManager->BuildPhysicsTable(firstParticle);
182 numberOfModels, master); << 278
>> 279 // explicitly defined printout by particle name
>> 280 if(1 < verboseLevel ||
>> 281 (0 < verboseLevel && (num == "e-" ||
>> 282 num == "e+" || num == "mu+" ||
>> 283 num == "mu-" || num == "proton"||
>> 284 num == "pi+" || num == "pi-" ||
>> 285 num == "kaon+" || num == "kaon-" ||
>> 286 num == "alpha" || num == "anti_proton" ||
>> 287 num == "GenericIon")))
>> 288 {
>> 289 G4cout << G4endl << GetProcessName()
>> 290 << ": for " << num
>> 291 << " SubType= " << GetProcessSubType()
>> 292 << G4endl;
>> 293 PrintInfo();
>> 294 modelManager->DumpModelList(verboseLevel);
>> 295 }
>> 296
>> 297 if(1 < verboseLevel) {
>> 298 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() done for "
>> 299 << GetProcessName()
>> 300 << " and particle " << num
>> 301 << G4endl;
>> 302 }
183 } 303 }
184 304
185 //....oooOO0OOooo........oooOO0OOooo........oo 305 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
186 306
187 void G4VMultipleScattering::StreamInfo(std::os << 307 void G4VMultipleScattering::PrintInfoDefinition()
188 const G4ParticleDefinition& <<
189 { 308 {
190 G4String indent = (rst ? " " : ""); << 309 if (0 < verboseLevel) {
191 outFile << G4endl << indent << GetProcessNam << 310 G4cout << G4endl << GetProcessName()
192 if (!rst) outFile << " for " << part.GetPart << 311 << ": for " << firstParticle->GetParticleName()
193 outFile << " SubType= " << GetProcessSubTy << 312 << " SubType= " << GetProcessSubType()
194 modelManager->DumpModelList(outFile, verbose << 313 << G4endl;
>> 314 PrintInfo();
>> 315 modelManager->DumpModelList(verboseLevel);
>> 316 }
195 } 317 }
196 318
197 //....oooOO0OOooo........oooOO0OOooo........oo 319 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
198 320
199 void G4VMultipleScattering::StartTracking(G4Tr 321 void G4VMultipleScattering::StartTracking(G4Track* track)
200 { 322 {
201 G4VEnergyLossProcess* eloss = nullptr; << 323 G4VEnergyLossProcess* eloss = 0;
202 if(track->GetParticleDefinition() != currPar 324 if(track->GetParticleDefinition() != currParticle) {
203 currParticle = track->GetParticleDefinitio 325 currParticle = track->GetParticleDefinition();
204 fIonisation = emManager->GetEnergyLossProc 326 fIonisation = emManager->GetEnergyLossProcess(currParticle);
205 eloss = fIonisation; 327 eloss = fIonisation;
206 } 328 }
207 for(G4int i=0; i<numberOfModels; ++i) { << 329 // one model
208 G4VMscModel* msc = GetModelByIndex(i); << 330 if(1 == numberOfModels) {
209 msc->StartTracking(track); << 331 currentModel->StartTracking(track);
210 if(nullptr != eloss) { << 332 if(eloss) { currentModel->SetIonisation(fIonisation, currParticle); }
211 msc->SetIonisation(eloss, currParticle); << 333
>> 334 // many models
>> 335 } else {
>> 336 for(G4int i=0; i<numberOfModels; ++i) {
>> 337 G4VMscModel* msc = static_cast<G4VMscModel*>(modelManager->GetModel(i));
>> 338 msc->StartTracking(track);
>> 339 if(eloss) { msc->SetIonisation(fIonisation, currParticle); }
212 } 340 }
213 } 341 }
214 } 342 }
215 343
216 //....oooOO0OOooo........oooOO0OOooo........oo 344 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
217 345
218 G4double G4VMultipleScattering::AlongStepGetPh 346 G4double G4VMultipleScattering::AlongStepGetPhysicalInteractionLength(
219 const G4Track& tr 347 const G4Track& track,
220 G4double, 348 G4double,
221 G4double currentM 349 G4double currentMinimalStep,
222 G4double&, 350 G4double&,
223 G4GPILSelection* 351 G4GPILSelection* selection)
224 { 352 {
225 // get Step limit proposed by the process 353 // get Step limit proposed by the process
226 *selection = NotCandidateForSelection; 354 *selection = NotCandidateForSelection;
227 physStepLimit = gPathLength = tPathLength = 355 physStepLimit = gPathLength = tPathLength = currentMinimalStep;
228 356
229 G4double ekin = track.GetKineticEnergy(); 357 G4double ekin = track.GetKineticEnergy();
230 /* <<
231 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek <<
232 << " " << currParticle->GetParticleN <<
233 << " currMod " << currentModel <<
234 << G4endl; <<
235 */ <<
236 // isIon flag is used only to select a model 358 // isIon flag is used only to select a model
237 if(isIon) { 359 if(isIon) {
238 ekin *= proton_mass_c2/track.GetParticleDe 360 ekin *= proton_mass_c2/track.GetParticleDefinition()->GetPDGMass();
239 } 361 }
240 const G4MaterialCutsCouple* couple = track.G <<
241 362
242 // select new model, static cast is possible << 363 // select new model
243 if(1 < numberOfModels) { 364 if(1 < numberOfModels) {
244 currentModel = << 365 currentModel = static_cast<G4VMscModel*>(
245 static_cast<G4VMscModel*>(SelectModel(ek << 366 SelectModel(ekin,track.GetMaterialCutsCouple()->GetIndex()));
246 } 367 }
247 currentModel->SetCurrentCouple(couple); << 368
248 // msc is active is model is active, energy << 369 // step limit
249 // and step size is above the limit; << 370 if(currentModel->IsActive(ekin) && gPathLength >= geomMin
250 // if it is active msc may limit the step <<
251 if(currentModel->IsActive(ekin) && tPathLeng <<
252 && ekin >= lowestKinEnergy) { 371 && ekin >= lowestKinEnergy) {
253 isActive = true; 372 isActive = true;
254 tPathLength = << 373 tPathLength = currentModel->ComputeTruePathLengthLimit(track, gPathLength);
255 currentModel->ComputeTruePathLengthLimit <<
256 if (tPathLength < physStepLimit) { 374 if (tPathLength < physStepLimit) {
257 *selection = CandidateForSelection; 375 *selection = CandidateForSelection;
258 } 376 }
259 } else { << 377 } else { isActive = false; }
260 isActive = false; << 378 /*
261 gPathLength = DBL_MAX; << 379 if(currParticle->GetPDGMass() > GeV)
262 } <<
263 <<
264 //if(currParticle->GetPDGMass() > GeV) <<
265 /* <<
266 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 380 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
267 << " " << currParticle->GetParticleN << 381 << " gPathLength= " << gPathLength
268 << " gPathLength= " << gPathLength << 382 << " tPathLength= " << tPathLength
269 << " tPathLength= " << tPathLength << 383 << " currentMinimalStep= " << currentMinimalStep
270 << " currentMinimalStep= " << current << 384 << " isActive " << isActive << G4endl;
271 << " isActive " << isActive << G4endl <<
272 */ 385 */
273 return gPathLength; 386 return gPathLength;
274 } 387 }
275 388
276 //....oooOO0OOooo........oooOO0OOooo........oo 389 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
277 390
278 G4double 391 G4double
279 G4VMultipleScattering::PostStepGetPhysicalInte 392 G4VMultipleScattering::PostStepGetPhysicalInteractionLength(
280 const G4Track&, G4double, G4Forc 393 const G4Track&, G4double, G4ForceCondition* condition)
281 { 394 {
282 *condition = NotForced; << 395 *condition = Forced;
>> 396 //*condition = NotForced;
283 return DBL_MAX; 397 return DBL_MAX;
284 } 398 }
285 399
286 //....oooOO0OOooo........oooOO0OOooo........oo 400 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
287 401
288 G4VParticleChange* 402 G4VParticleChange*
289 G4VMultipleScattering::AlongStepDoIt(const G4T 403 G4VMultipleScattering::AlongStepDoIt(const G4Track& track, const G4Step& step)
290 { 404 {
291 fParticleChange.InitialiseMSC(track, step); << 405 fParticleChange.ProposeMomentumDirection(step.GetPostStepPoint()->GetMomentumDirection());
292 fNewPosition = fParticleChange.GetProposedPo << 406 fNewPosition = step.GetPostStepPoint()->GetPosition();
>> 407 fParticleChange.ProposePosition(fNewPosition);
293 fPositionChanged = false; 408 fPositionChanged = false;
294 409
295 G4double geomLength = step.GetStepLength(); 410 G4double geomLength = step.GetStepLength();
296 411
297 // very small step - no msc 412 // very small step - no msc
298 if(!isActive) { 413 if(!isActive) {
299 tPathLength = geomLength; 414 tPathLength = geomLength;
300 415
301 // sample msc 416 // sample msc
302 } else { 417 } else {
303 G4double range = 418 G4double range =
304 currentModel->GetRange(currParticle,trac 419 currentModel->GetRange(currParticle,track.GetKineticEnergy(),
305 track.GetMaterial << 420 track.GetMaterialCutsCouple());
306 421
307 tPathLength = currentModel->ComputeTrueSte << 422 G4double trueLength = currentModel->ComputeTrueStepLength(geomLength);
308 << 423
309 /* << 424
310 if(currParticle->GetPDGMass() > 0.9*GeV) << 425 // protection against wrong t->g->t conversion
>> 426 // if(trueLength > tPathLength)
>> 427 /*
>> 428 if(currParticle->GetPDGMass() > GeV)
311 G4cout << "G4VMsc::AlongStepDoIt: GeomLeng 429 G4cout << "G4VMsc::AlongStepDoIt: GeomLength= "
312 << geomLength << 430 << geomLength
313 << " tPathLength= " << tPathLength << 431 << " trueLenght= " << trueLength
314 << " physStepLimit= " << physStepLi << 432 << " tPathLength= " << tPathLength
315 << " dr= " << range - tPathLength << 433 << " dr= " << range - trueLength
316 << " ekin= " << track.GetKineticEne << 434 << " ekin= " << track.GetKineticEnergy() << G4endl;
317 */ 435 */
318 // protection against wrong t->g->t conver << 436 if (trueLength <= physStepLimit) {
319 tPathLength = std::min(tPathLength, physSt << 437 tPathLength = trueLength;
>> 438 } else {
>> 439 tPathLength = physStepLimit - 0.5*geomMin;
>> 440 }
320 441
321 // do not sample scattering at the last or 442 // do not sample scattering at the last or at a small step
322 if(tPathLength < range && tPathLength > ge << 443 if(tPathLength + geomMin < range && tPathLength > geomMin) {
323 <<
324 static const G4double minSafety = 1.20*C <<
325 static const G4double sFact = 0.99; <<
326 444
327 G4ThreeVector displacement = currentMode << 445 G4double preSafety = step.GetPreStepPoint()->GetSafety();
328 step.GetPostStepPoint()->GetMomentumDi << 446 G4double postSafety= preSafety - geomLength;
>> 447 G4bool safetyRecomputed = false;
>> 448 if( postSafety < geomMin ) {
>> 449 safetyRecomputed = true;
>> 450 postSafety = currentModel->ComputeSafety(fNewPosition,0.0);
>> 451 }
>> 452 G4ThreeVector displacement =
>> 453 currentModel->SampleScattering(step.GetPostStepPoint()->GetMomentumDirection(),postSafety);
329 454
330 G4double r2 = displacement.mag2(); 455 G4double r2 = displacement.mag2();
331 //G4cout << " R= " << sqrt(r2) << " R << 456
332 // << " flag= " << fDispBeyondSafety << 457 //G4cout << "R= " << sqrt(r2) << " postSafety= " << postSafety << G4endl;
333 if(r2 > minDisplacement2) { << 458
334 << 459 // make correction for displacement
335 fPositionChanged = true; << 460 if(r2 > 0.0) {
336 G4double dispR = std::sqrt(r2); << 461
337 G4double postSafety = << 462 fPositionChanged = true;
338 sFact*safetyHelper->ComputeSafety(fN << 463 G4double fac = 1.0;
339 //G4cout<<" R= "<< dispR<<" postSaf << 464
340 << 465 // displaced point is definitely within the volume
341 // far away from geometry boundary << 466 if(r2 > postSafety*postSafety) {
342 if(postSafety > 0.0 && dispR <= postSa << 467
343 fNewPosition += displacement; << 468 G4double dispR = std::sqrt(r2);
344 << 469 if(!safetyRecomputed) {
345 //near the boundary << 470 postSafety = currentModel->ComputeSafety(fNewPosition, dispR);
346 } else { << 471 }
347 // displaced point is definitely wit << 472 // add a factor which ensure numerical stability
348 //G4cout<<" R= "<<dispR<<" postSa << 473 if(dispR > postSafety) { fac = 0.99*postSafety/dispR; }
349 if(dispR < postSafety) { << 474 }
350 fNewPosition += displacement; << 475 // compute new endpoint of the Step
351 << 476 fNewPosition += fac*displacement;
352 // reduced displacement << 477 //safetyHelper->ReLocateWithinVolume(fNewPosition);
353 } else if(postSafety > geomMin) { <<
354 fNewPosition += displacement*(post <<
355 <<
356 // very small postSafety <<
357 } else { <<
358 fPositionChanged = false; <<
359 } <<
360 } <<
361 if(fPositionChanged) { <<
362 safetyHelper->ReLocateWithinVolume(f <<
363 fParticleChange.ProposePosition(fNew <<
364 } <<
365 } 478 }
366 } 479 }
367 } 480 }
368 fParticleChange.ProposeTrueStepLength(tPathL 481 fParticleChange.ProposeTrueStepLength(tPathLength);
>> 482 //fParticleChange.ProposePosition(fNewPosition);
>> 483 return &fParticleChange;
>> 484 }
>> 485
>> 486 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 487
>> 488 G4VParticleChange*
>> 489 G4VMultipleScattering::PostStepDoIt(const G4Track& track, const G4Step&)
>> 490 {
>> 491 fParticleChange.Initialize(track);
>> 492
>> 493 if(fPositionChanged) {
>> 494 safetyHelper->ReLocateWithinVolume(fNewPosition);
>> 495 fParticleChange.ProposePosition(fNewPosition);
>> 496 }
>> 497
369 return &fParticleChange; 498 return &fParticleChange;
370 } 499 }
371 500
372 //....oooOO0OOooo........oooOO0OOooo........oo 501 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
373 502
374 G4double G4VMultipleScattering::GetContinuousS 503 G4double G4VMultipleScattering::GetContinuousStepLimit(
375 const G 504 const G4Track& track,
376 G4doubl 505 G4double previousStepSize,
377 G4doubl 506 G4double currentMinimalStep,
378 G4doubl 507 G4double& currentSafety)
379 { 508 {
380 G4GPILSelection selection = NotCandidateForS 509 G4GPILSelection selection = NotCandidateForSelection;
381 G4double x = AlongStepGetPhysicalInteraction 510 G4double x = AlongStepGetPhysicalInteractionLength(track,previousStepSize,
382 << 511 currentMinimalStep,
383 << 512 currentSafety, &selection);
384 <<
385 return x; 513 return x;
386 } 514 }
387 515
388 //....oooOO0OOooo........oooOO0OOooo........oo 516 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
389 517
390 G4double G4VMultipleScattering::ContinuousStep 518 G4double G4VMultipleScattering::ContinuousStepLimit(
391 const G 519 const G4Track& track,
392 G4doubl 520 G4double previousStepSize,
393 G4doubl 521 G4double currentMinimalStep,
394 G4doubl 522 G4double& currentSafety)
395 { 523 {
396 return GetContinuousStepLimit(track,previous 524 return GetContinuousStepLimit(track,previousStepSize,currentMinimalStep,
397 currentSafety) << 525 currentSafety);
398 } 526 }
399 527
400 //....oooOO0OOooo........oooOO0OOooo........oo 528 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
401 529
402 G4double G4VMultipleScattering::GetMeanFreePat 530 G4double G4VMultipleScattering::GetMeanFreePath(
403 const G4Track&, G4double, G4Forc 531 const G4Track&, G4double, G4ForceCondition* condition)
404 { 532 {
405 *condition = Forced; 533 *condition = Forced;
406 return DBL_MAX; 534 return DBL_MAX;
407 } 535 }
408 536
409 //....oooOO0OOooo........oooOO0OOooo........oo 537 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
410 538
411 G4bool 539 G4bool
412 G4VMultipleScattering::StorePhysicsTable(const 540 G4VMultipleScattering::StorePhysicsTable(const G4ParticleDefinition* part,
413 const << 541 const G4String& directory,
414 G4boo << 542 G4bool ascii)
415 { 543 {
416 G4bool yes = true; 544 G4bool yes = true;
417 if(part != firstParticle || !emManager->IsMa << 545 if(part != firstParticle) { return yes; }
418 << 546 G4int nmod = modelManager->NumberOfModels();
419 return G4EmTableUtil::StoreMscTable(this, pa << 547 const G4String ss[4] = {"1","2","3","4"};
420 numberOfModels, verboseLevel, << 548 for(G4int i=0; i<nmod; ++i) {
421 ascii); << 549 G4VEmModel* msc = modelManager->GetModel(i);
>> 550 yes = true;
>> 551 G4PhysicsTable* table = msc->GetCrossSectionTable();
>> 552 if (table) {
>> 553 G4int j = std::min(i,3);
>> 554 G4String name =
>> 555 GetPhysicsTableFileName(part,directory,"LambdaMod"+ss[j],ascii);
>> 556 yes = table->StorePhysicsTable(name,ascii);
>> 557
>> 558 if ( yes ) {
>> 559 if ( verboseLevel>0 ) {
>> 560 G4cout << "Physics table are stored for " << part->GetParticleName()
>> 561 << " and process " << GetProcessName()
>> 562 << " with a name <" << name << "> " << G4endl;
>> 563 }
>> 564 } else {
>> 565 G4cout << "Fail to store Physics Table for " << part->GetParticleName()
>> 566 << " and process " << GetProcessName()
>> 567 << " in the directory <" << directory
>> 568 << "> " << G4endl;
>> 569 }
>> 570 }
>> 571 }
>> 572 return yes;
422 } 573 }
423 574
424 //....oooOO0OOooo........oooOO0OOooo........oo 575 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
425 576
426 G4bool 577 G4bool
427 G4VMultipleScattering::RetrievePhysicsTable(co 578 G4VMultipleScattering::RetrievePhysicsTable(const G4ParticleDefinition*,
428 co << 579 const G4String&,
429 G4 << 580 G4bool)
430 { 581 {
431 return true; 582 return true;
432 } 583 }
433 584
434 //....oooOO0OOooo........oooOO0OOooo........oo 585 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
435 586
436 void G4VMultipleScattering::ProcessDescription << 587 void G4VMultipleScattering::SetIonisation(G4VEnergyLossProcess* p)
437 { 588 {
438 if(nullptr != firstParticle) { << 589 for(G4int i=0; i<numberOfModels; ++i) {
439 StreamInfo(outFile, *firstParticle, true); << 590 G4VMscModel* msc = static_cast<G4VMscModel*>(modelManager->GetModel(i));
>> 591 msc->SetIonisation(p, firstParticle);
440 } 592 }
441 } 593 }
442 594
443 //....oooOO0OOooo........oooOO0OOooo........oo 595 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
444 596
445 597